Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Decoding device for decoding a variety of code signals










Image Number 12 for United States Patent #5675331.

A decoding device is provided including a code FIFO memory unit for sequentially storing a bit stream, a barrel shifter for shifting and then outputting codes properly, an accumulator for computing the shift amount of the barrel shifter and issuing a request to read data to the code FIFO memory unit, a DCT coefficient decoder for decoding DCT coefficients, a variable-length code decoder for decoding variable-length codes other than DCT coefficients, a fixed-length code decoder for decoding fixed-length codes, a register unit for storing decoded data, a decoding controller for controlling the decoders in accordance with the decoded data stored in the register unit and decoded data output by the decoders and a memory controller for controlling operations to store DCT coefficients in a memory unit A. The DCT coefficient decoder, the variable-length code decoder and the fixed-length code decoder are connected in parallel to the output of the barrel shifter and the memory controller is controlled by the decoding controller. By virtue of this structure, the decoding device is capable decoding a bit stream comprising variable-length codes mixed with fixed-length codes. The decoding device is also capable of changing processing of a next code in accordance with decoded codes. Further, these operations can be implemented by means of a simple and reasonable configuration. On top of that, the process of decoding codes at a required high speed is carried out by an independent circuit, allowing the processing power of the decoding circuit to be enhanced.








 
 
  Recently Added Patents
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Secure data exchange for processing requests
Digital media content distribution
Flash memory apparatus and method for generating read voltage thereof
Multi currency exchanges between participants
Prompt gap varying optical filter, analytical instrument, optical device, and characteristic measurement method
Method for the treatment, alleviation of symptoms of, relieving, improving and preventing a cognitive disease, disorder or condition
  Randomly Featured Patents
System and method for obtaining and utilizing maintenance information
Power circuit including step-up circuit and stabilizing method thereof
Receiving wireless information on a mobile device with reduced power consumption
Floatable system utilizing structural deck plates
Selective production of para-xylene
Surface mounting structure for surface mounting an electronic component
Conversion of Fischer-Tropsch oxygenates to middle distillate
Filter circuit
Laser apparatus
Traffic control system and method for use in international border zones